On the breakup of an air bubble injected into a fully developed turbulent flow. Part 1. Breakup frequency

Martínez Bazán, Carlos and Montañés García, José Luis and Lasheras, Juan C. (1999). On the breakup of an air bubble injected into a fully developed turbulent flow. Part 1. Breakup frequency. "Journal Fluid Mechanics", v. 401 ; pp. 157-182. ISSN 0022-1120. https://doi.org/10.1017/S0022112099006680.

Description

Title: On the breakup of an air bubble injected into a fully developed turbulent flow. Part 1. Breakup frequency
Author/s:
  • Martínez Bazán, Carlos
  • Montañés García, José Luis
  • Lasheras, Juan C.
Item Type: Article
Título de Revista/Publicación: Journal Fluid Mechanics
Date: 1999
ISSN: 0022-1120
Volume: 401
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview

Abstract

The transient evolution of the bubble-size probability density functions resulting from the breakup of an air bubble injected into a fully developed turbulent water ow has been measured experimentally using phase Doppler particle sizing (PDPA) and image processing techniques. These measurements were used to determine the breakup frequency of the bubbles as a function of their size and of the critical diameter Dc defined as Dc = 1.26 ([sigma]/[rho])3/5[epsilon][minus sign]2/5, where [epsilon] is the rate of dissipation per unit mass and per unit time of the underlying turbulence. A phenomenological model is proposed showing the existence of two distinct bubble size regimes. For bubbles of sizes comparable to Dc, the breakup frequency is shown to increase as ([sigma]/[rho])[minus sign]2/5[epsilon][minus sign]3/5 [surd radical]D/Dc[minus sign]1, while for large bubbles whose sizes are greater than 1.63Dc, it decreases with the bubble size as [epsilon]1/3D[minus sign]2/3. The model is shown to be in good agreement with measurements performed over a wide range of bubble sizes and turbulence intensities

More information

Item ID: 5928
DC Identifier: http://oa.upm.es/5928/
OAI Identifier: oai:oa.upm.es:5928
DOI: 10.1017/S0022112099006680
Official URL: http://journals.cambridge.org
Deposited by: Memoria de Investigacion 2
Deposited on: 08 Feb 2011 16:02
Last Modified: 20 Apr 2016 14:36
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM